Integers and polynomials are both _[blank 1]_ under addition, subtraction...
match each blank with the words or phrases that correctly fill in each blank to make the previous sentence true.
can sometimes be open
produce irrational results
produce polynomial results
can never be open
produce integer results
produce whole number results
Integers and polynomials are both closed under addition, subtraction, and multiplication; however, operations on polynomials can sometimes be open while operations on integers produce irrational results .
Closed means that addition, subtraction, and multiplication of integers gives as result a new integer; and addition, subtraction, and multiplication of polynomials gives as result a new polynomial.
Operations on polynomials can sometimes be open, like in division.
Operations on integers can produce irrational results , for example, dividing 11 by 9.
if you're trying to figure out how much each ounce cost it would be 0.20
cents each ounce